111210212120 has 64 divisors (see below), whose sum is σ = 287723646720. Its totient is φ = 37895278464.

The previous prime is 111210212093. The next prime is 111210212123. The reversal of 111210212120 is 21212012111.

111210212120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111210212120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 111210212095 and 111210212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172702 + ... + 1263981.

It is an arithmetic number, because the mean of its divisors is an integer number (4495681980).

Almost surely, 2^111210212120 is an apocalyptic number.

111210212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210212120 is an abundant number, since it is smaller than the sum of its proper divisors (176513434600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111210212120 is a wasteful number, since it uses less digits than its factorization.

111210212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436864 (or 2436860 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111210212120 its reverse (21212012111), we get a palindrome (132422224231).

Subtracting from 111210212120 its reverse (21212012111), we obtain a square (89998200009 = 299997²).

The spelling of 111210212120 in words is "one hundred eleven billion, two hundred ten million, two hundred twelve thousand, one hundred twenty".